Acts 13:20​ "And after that he gave unto them judges about the space of four hundred and fifty years, until Samuel the prophet." ​...

1 King 6:1 “And it came to pass in the four hundred and eightieth year after the children of Israel were come out of the land of Egypt,...

The time children of Israel spent in Egypt   In order to find out how many years the children of Israel spent in Egypt, we have to...